Carbohydrate metabolism reading 1 Flashcards
Macromolecules composed of carbon and a 2:1 ratio of hydrogen to oxygen, including sugars, starches, glycogen, and cellulose are categorized as _____.
carbohydrates
Identify the roles of carbohydrates in the body.
Serves as an energy source
Forms cell membrane structure
A monosaccharide will have about how many carbon atoms?
6
There are 3 classes of carbohydrates: monosaccharides, disaccharides and polysaccharides. Glucose is an example of a…glycogen is an example of a…and lactose is an example of a disaccharide.
monosaccharides
polysaccharides
Molecules with the same molecular formula but having different arrangements of their component atoms are known as ______.
isomers
In addition to being the principle molecule that is broken down to provide energy for the body, carbohydrates also do which of the following?
Provide bulk in the feces
Match the specific carbohydrate with the correct class of carbohydrate.
Lactose: Disaccharide
Glucose: Monosaccharide
Starch: Polysaccharide
Sucrose is composed of two monosaccharides. It is a ______.
disaccharide
Indicate all choices that describe glycogen.
A long chain of glucose molecules
Stored in the liver
An energy storage molecule in animals
When two simple sugars are covalently linked together, a(n) ______ is formed.
disaccharide
Choose the disaccharides from the list below. Check all that apply.
Maltose
Sucrose
Lactose
The major polysaccharide in plants that is important for structure is ______, whereas the principle polysaccharide in plants that is used for storage is ______.
cellulose
starch
The chemical digestion of the disaccharides occurs in the ______.
small intestine
Sucrose is composed of two monosaccharides. It is a ______.
disaccharide
Identify the enzymes that aid in the chemical digestion of carbohydrates. Select all that apply.
Amylase
Disaccharidases
